Effect of hybrid field coupling in nanostructured surfaces on anisotropic signal detection in nanoscale infrared spectroscopic imaging methods
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arXiv
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| Natura: | Preprint |
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2025
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| author | James, Ayona Ali, Maryam Ye, Zekai Nhi, Phan Thi Yen Xavi, Sharon Huq, Mashiat Barua, Sajib Luo, Meng Tsegazab, Yisak Elmanova, Anna Schneider, Robin Ustimenko, Olga Stanca, Sarmiza-Elena Diegel, Marco Dellith, Andrea Hübner, Uwe Krafft, Christoph Finkelmeyer, Jasmin Hupfer, Maximilian Peneva, Kalina Zeisberger, Matthias David, Christin Presselt, Martin Täuber, Daniela |
| author_facet | James, Ayona Ali, Maryam Ye, Zekai Nhi, Phan Thi Yen Xavi, Sharon Huq, Mashiat Barua, Sajib Luo, Meng Tsegazab, Yisak Elmanova, Anna Schneider, Robin Ustimenko, Olga Stanca, Sarmiza-Elena Diegel, Marco Dellith, Andrea Hübner, Uwe Krafft, Christoph Finkelmeyer, Jasmin Hupfer, Maximilian Peneva, Kalina Zeisberger, Matthias David, Christin Presselt, Martin Täuber, Daniela |
| contents | Anisotropic intensity distributions on nanostructured surfaces and polarization-sensitive spectra have been observed in a number of nanoscale infrared spectroscopic imaging methods, including nano-FTIR [Bakir et al., Molecules, 2020, 25, 4295], photothermal induced resonance (PTIR) [Waeytens et al., Analyst, 2021, 146], tapping AFM-IR [Hondl et al., ACS Meas. Sci. Au, 2025, 5, 469; Luo et al., APL, 2022, 121, 23330], infrared photoinduced force microscopy (PiF-IR) [Anindo et al., JPCC, 2025, 129, 4517; Shcherbakov et al., Rev Methods Primers, 2025, 5, 1; Ali et al., Anal. Chem., 2025, 97, 23914] and peak force infrared microscopy (PFIR) [Xie et al., JPCC, 2022, 126, 8393; Anindo, JPCC, 2025]. A recent work combining modeling and experiment demonstrated that the hybrid field coupling of the IR illumination E0 with a polymer nanosphere and a metallic AFM probe is nearly as strong as the plasmonic coupling in case of a gold nanosphere [Anindo, JPCC, 2025]. For p-polarized illumination, this results in enhanced IR absorption on the surface perpendicular to the propagation of E0 which can explain the observed anisotropic intensity distribution. An additional anisotropy may be introduced by aligned surface molecules with oriented vibrational transition moments [Bakir et al., Molecules, 2020, 25, 4295; Luo, APL, 2022]. PiF-IR is strongly surface sensitive combining an unprecedented spatial resolution < 5 nm with high spectral resolution [Shcherbakov, Rev Methods Primers, 2025; Ali, Anal. Chem., 2025], which allows, for example, to visualize nanoscale chemical variation on the surface of bacteria cells affected by antimicrobial interaction [Ali, Anal. Chem., 2025]. We compare PiF-IR hyperspectra of aligned perylene Langmuir Blodgett monolayers on nanostructured and planar gold substrates and use quantum chemical calculations of the oriented vibrational oscillators to interpret the observations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_22373 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Effect of hybrid field coupling in nanostructured surfaces on anisotropic signal detection in nanoscale infrared spectroscopic imaging methods James, Ayona Ali, Maryam Ye, Zekai Nhi, Phan Thi Yen Xavi, Sharon Huq, Mashiat Barua, Sajib Luo, Meng Tsegazab, Yisak Elmanova, Anna Schneider, Robin Ustimenko, Olga Stanca, Sarmiza-Elena Diegel, Marco Dellith, Andrea Hübner, Uwe Krafft, Christoph Finkelmeyer, Jasmin Hupfer, Maximilian Peneva, Kalina Zeisberger, Matthias David, Christin Presselt, Martin Täuber, Daniela Mesoscale and Nanoscale Physics Materials Science Soft Condensed Matter Anisotropic intensity distributions on nanostructured surfaces and polarization-sensitive spectra have been observed in a number of nanoscale infrared spectroscopic imaging methods, including nano-FTIR [Bakir et al., Molecules, 2020, 25, 4295], photothermal induced resonance (PTIR) [Waeytens et al., Analyst, 2021, 146], tapping AFM-IR [Hondl et al., ACS Meas. Sci. Au, 2025, 5, 469; Luo et al., APL, 2022, 121, 23330], infrared photoinduced force microscopy (PiF-IR) [Anindo et al., JPCC, 2025, 129, 4517; Shcherbakov et al., Rev Methods Primers, 2025, 5, 1; Ali et al., Anal. Chem., 2025, 97, 23914] and peak force infrared microscopy (PFIR) [Xie et al., JPCC, 2022, 126, 8393; Anindo, JPCC, 2025]. A recent work combining modeling and experiment demonstrated that the hybrid field coupling of the IR illumination E0 with a polymer nanosphere and a metallic AFM probe is nearly as strong as the plasmonic coupling in case of a gold nanosphere [Anindo, JPCC, 2025]. For p-polarized illumination, this results in enhanced IR absorption on the surface perpendicular to the propagation of E0 which can explain the observed anisotropic intensity distribution. An additional anisotropy may be introduced by aligned surface molecules with oriented vibrational transition moments [Bakir et al., Molecules, 2020, 25, 4295; Luo, APL, 2022]. PiF-IR is strongly surface sensitive combining an unprecedented spatial resolution < 5 nm with high spectral resolution [Shcherbakov, Rev Methods Primers, 2025; Ali, Anal. Chem., 2025], which allows, for example, to visualize nanoscale chemical variation on the surface of bacteria cells affected by antimicrobial interaction [Ali, Anal. Chem., 2025]. We compare PiF-IR hyperspectra of aligned perylene Langmuir Blodgett monolayers on nanostructured and planar gold substrates and use quantum chemical calculations of the oriented vibrational oscillators to interpret the observations. |
| title | Effect of hybrid field coupling in nanostructured surfaces on anisotropic signal detection in nanoscale infrared spectroscopic imaging methods |
| topic | Mesoscale and Nanoscale Physics Materials Science Soft Condensed Matter |
| url | https://arxiv.org/abs/2512.22373 |